A kind of seed production method of capsicum hybrid

Abstract

The invention relates to a production method for pepper hybrids. The production method comprises the following steps: (1) sowing seeds of pepper half-sterile line female parent; (2) sowing pepper stock and male parent seeds when the half-sterile line female parent grows for 1.5-2.5 months; (3) removing pollen plants after the half-sterile line female parent flowers; (4) grafting twigs and branches, taken as scions, of the female parent without pollen onto the stock; and (5) performing pollination when the scions and male parent of the grafted seedlings flower, thereby acquiring the pepper hybrids after fruit is ripened. According to the planting method, the problem of 50% of fertile plants can be thoroughly solved; the pollination is timely and efficient; the yield is increased on the basis of ensuring purity; as the grafting position of the stock is under the cotyledon, the growth point of the stock is removed, the operation of cutting lateral branches while pollination is omitted, the risk of influence on purity caused by incompletely cut lateral branches is avoided, the cost is saved, and the seed production is safe.

Description

technical field

[0001] The invention belongs to the technical field of genetic breeding, and in particular relates to a seed production method of pepper hybrids. Background technique

[0002] The heterosis of pepper is significant. Breeding hybrids is an effective way to increase yield, improve quality, and enhance stress resistance. Usually, pepper seeds are produced by emasculating inbred lines to prepare a first-generation hybrid. The specific operation is that workers manually remove all the stamens of each flower before pollination of peppers, and then pollinate with the male flower. Detasselling needs to be carried out before the flower buds mature but before the anthers crack. Premature emasculation affects the fruit setting rate and seed setting rate. Later, the anthers detach and loose powder to mix the seeds, so workers need to have rich experience to grasp the time of emasculation. In addition, in the process of detasseling, not only the detasseling is required t...

Examples

Embodiment 1

[0031] (1) Reproduction of the female parent of the pepper semi-sterile line:

[0032] Seed sowing: Before sowing, 500 grains / mu of the female parent (in this case, 1600 female parents and 400 male parents per mu are taken as an example) are treated with trisodium phosphate, the solution concentration is 10wt%, and the soaking time is 2 Hours, while soaking and stirring, 60 revolutions per minute, after soaking, wash with clear water until the pH value of the water for washing seeds is 7 before they can be used for sowing. Disinfect the 50-point hole trays for use. When sowing, first fill the hole trays with the substrate and water them thoroughly. Make a 1cm deep hole in the center of each hole, sow the seeds into the holes, and place the sown hole trays neatly on a flat surface. In the nursery furrow of the plant, finally uniformly cover with soil and water. The depth of the covering soil should be appropriate, about 1cm. If it is too deep, it will take a long time for the ...

technical field

[0001] The invention belongs to the technical field of genetic breeding, and in particular relates to a seed production method of pepper hybrids. Background technique

[0002] The heterosis of pepper is significant. Breeding hybrids is an effective way to increase yield, improve quality, and enhance stress resistance. Usually, pepper seeds are produced by emasculating inbred lines to prepare a first-generation hybrid. The specific operation is that workers manually remove all the stamens of each flower before pollination of peppers, and then pollinate with the male flower. Detasselling needs to be carried out before the flower buds mature but before the anthers crack. Premature emasculation affects the fruit setting rate and seed setting rate. Later, the anthers detach and loose powder to mix the seeds, so workers need to have rich experience to grasp the time of emasculation. In addition, in the process of detasseling, not only the detasseling is required t...

Examples

Embodiment 1

[0031] (1) Reproduction of the female parent of the pepper semi-sterile line:

[0032] Seed sowing: Before sowing, 500 grains / mu of the female parent (in this case, 1600 female parents and 400 male parents per mu are taken as an example) are treated with trisodium phosphate, the solution concentration is 10wt%, and the soaking time is 2 Hours, while soaking and stirring, 60 revolutions per minute, after soaking, wash with clear water until the pH value of the water for washing seeds is 7 before they can be used for sowing. Disinfect the 50-point hole trays for use. When sowing, first fill the hole trays with the substrate and water them thoroughly. Make a 1cm deep hole in the center of each hole, sow the seeds into the holes, and place the sown hole trays neatly on a flat surface. In the nursery furrow of the plant, finally uniformly cover with soil and water. The depth of the covering soil should be appropriate, about 1cm. If it is too deep, it will take a long time for the ...

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